Intelligent control for energy-positive street lighting

András Kovács, Roland Bátai, Balázs Csanád Csáji, Péter Dudás, Borbála Háy, Gianfranco Pedone, Tibor Révész, J. Váncza

Research output: Contribution to journalArticle

30 Citations (Scopus)


The paper investigates the application of solar energy in public lighting for realizing a street lighting sub-grid with positive yearly energy balance. The focus is given to the central controller, which ensures the adaptive behavior of the overall system and provides smart city services to the end users via its web-based user interface. A functionality of the controller of special interest is the optimization of the energy management of the system, i.e., determining when to sell and buy electricity to/from the grid, in order to minimize the cost of electricity (or to maximize the profit) subject to a given, time-of-use variable energy tariff. This requires precise forecasts of the energy produced and consumed, as well as appropriate robust optimization techniques that guarantee that the system bridges potential power outages of moderate duration in island mode. The algorithms implemented in the controller are presented in detail, together with the evaluation of the operation of a deployed physical prototype with 191 luminaries over a horizon of six months, based on the monitoring data collected by the proposed controller.

Original languageEnglish
Pages (from-to)40-51
Number of pages12
Publication statusPublished - Nov 1 2016


  • Energy management
  • Renewable energy
  • Smart cities
  • Street lighting

ASJC Scopus subject areas

  • Pollution
  • Energy(all)

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  • Cite this

    Kovács, A., Bátai, R., Csáji, B. C., Dudás, P., Háy, B., Pedone, G., Révész, T., & Váncza, J. (2016). Intelligent control for energy-positive street lighting. Energy, 114, 40-51.